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Finding the Fourth Proportional to 144,914.70, 217,410.45 and 51,410.70

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Solution

The fourth proportional to 144,914.70, 217,410.45 and 51,410.70 is: 77,129.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,914.70 : 217,410.45 = 51,410.70 : x
  2. Step 2: Convert to fraction form
    144,914.70/217,410.45 = 51,410.70/x
  3. Step 3: Cross multiply
    144,914.70x = 217,410.45 × 51,410.70
  4. Step 4: Simplify right side
    144,914.70x = 11,177,223,421.82
  5. Step 5: Solve for x
    x = 11,177,223,421.82/144,914.70
  6. Step 6: Final answer
    x = 77,129.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.